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Ç¥ÁعøÈ£ TTAT.3G-22.173(R15-15.1.0) ±¸Ç¥ÁعøÈ£
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¿µ¹®Ç¥Áظí 3GPP - Services and System Aspects; IP Multimedia Core Network Subsystem (IMS) Multimedia Telephony Service and supplementary services; Stage 1 (Release15)
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°ü·ÃÆÄÀÏ TTAT.3G-22.173(R15-15.1.0).pdf TTAT.3G-22.173(R15-15.1.0).pdf            

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3rd Generation Partnership Project;Technical Specification Group Services and System Aspects;Telecommunication management; Charging management; Exposure function Northbound Application Program Interfaces (APIs) charging(Release 18)
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3rd Generation Partnership Project;Technical Specification Group Services and System Aspects;Telecommunication management; Charging management; 5G data connectivity domain charging; Stage 2(Release 18)